Finding the Fourth Proportional to 272,947.90, 409,421.84 and 106,619.26
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Solution
The fourth proportional to 272,947.90, 409,421.84 and 106,619.26 is: 159,928.89
Step by Step Solution
- Step 1: Write the proportion equation
272,947.90 : 409,421.84 = 106,619.26 : x - Step 2: Convert to fraction form
272,947.90/409,421.84 = 106,619.26/x - Step 3: Cross multiply
272,947.90x = 409,421.84 × 106,619.26 - Step 4: Simplify right side
272,947.90x = 43,652,253,608.64 - Step 5: Solve for x
x = 43,652,253,608.64/272,947.90 - Step 6: Final answer
x = 159,928.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.